Electrical & Power Supplies for Surveillance Systems

Plan Your Deployment

Voltage requirements and device compatibility
Power budgeting across cameras and access devices
Centralized vs distributed power design
Surge protection and environmental safeguards
Redundancy and uptime planning

Sub categories

Showing Results for Electrical & Power

Compare

Out of stock
i-PRO

SKU: MR-POWER-5P

I-Pro Mr-Power-5P 120W AC Adaptor

120W AC adaptor with 5-pin Phoenix connector for i-PRO MR-8C NVRs
- 120W DC output supports dual network video recorder operation
- 5-pin Phoenix connector prevents accidental disconnection in field deployments
- AC input compatible with standard North American power infrastructure
$215.76 $148.99 Save $66.77

Add to Cart
The item has been added
Free shipping over $499

$215.76 $148.99 Save $66.77

Add to quote Compare
Compare

Out of stock
i-PRO

SKU: PSS932

i-PRO Power Supply FOR Remote Head HD Camera System - PSS932
$142.00 $141.99 Save $0.01

Add to Cart
The item has been added
Free shipping over $499

$142.00 $141.99 Save $0.01

Add to quote Compare
Compare

Out of stock
i-PRO

SKU: MC-2C82D8PE8M2

i-PRO Power Supply LSP Model # - MC-2C82D8PE8M2
$2,496.51 $1,756.99 Save $739.52

Add to Cart
The item has been added
Free shipping over $499

$2,496.51 $1,756.99 Save $739.52

Add to quote Compare
Compare

Out of stock
i-PRO

SKU: MC-B100C8D8PE4M

i-PRO Power Supply LSP Model # FPO150-B100C8D8 - MC-B100C8D8PE4M
$1,035.60 $728.99 Save $306.61

Add to Cart
The item has been added
Free shipping over $499

$1,035.60 $728.99 Save $306.61

Add to quote Compare
Compare

Out of stock
i-PRO

SKU: MC-TM250

i-PRO Power Supply: Altronix Model # TM250 Enclosure - MC-TM250
$209.06 $147.99 Save $61.07

Add to Cart
The item has been added
Free shipping over $499

$209.06 $147.99 Save $61.07

Add to quote Compare
Compare

Out of stock
i-PRO

SKU: MC-T2MK77F16QMC

i-PRO Power Supply: TROVE2M2 2X EFLOW104NB 2X - MC-T2MK77F16QMC
$2,344.80 $1,650.99 Save $693.81

Add to Cart
The item has been added
Free shipping over $499

$2,344.80 $1,650.99 Save $693.81

Add to quote Compare
Compare

Out of stock
i-PRO

SKU: MC-T3MK77F16SQMC

i-PRO Power Supply: TROVE3M3 2X EFLOW104NB 2X - MC-T3MK77F16SQMC
$3,633.35 $2,556.99 Save $1,076.36

Add to Cart
The item has been added
Free shipping over $499

$3,633.35 $2,556.99 Save $1,076.36

Add to quote Compare
Compare

Out of stock
Kantech

SKU: KT-PS4085

Kantech KT-PS4085 12VDC 1.5A Power Supply

12VDC 1.5A regulated supply for distributed access control systems
$120.00 $119.99 Save $0.01

Add to Cart
The item has been added
Free shipping over $499

$120.00 $119.99 Save $0.01

Add to quote Compare
Compare

Out of stock
Kantech

SKU: KTES-PS-NA

Kantech KTES-PS-NA 19VDC 3.15A Power Supply

19VDC 3.15A regulated power supply for Kantech access control
$244.00 $179.99 Save $64.01

Add to Cart
The item has been added
Free shipping over $499

$244.00 $179.99 Save $64.01

Add to quote Compare
Compare

Out of stock
Kantech

SKU: KT-LSP-C4E1

Kantech LifeSafety Power 75W 12V/24V Supply

75W dual-voltage supply for access control and door locks
$475.00 $384.99 Save $90.01

Add to Cart
The item has been added
Free shipping over $499

$475.00 $384.99 Save $90.01

Add to quote Compare
Compare

Out of stock
Lantronix

SKU: SPS-UA12DHT-EU

Lantronix SPS-UA12DHT-EU 18W Universal AC Power Adapter

12VDC 18W universal power adapter for Lantronix SPS series devices
$48.00 $47.99 Save $0.01

Add to Cart
The item has been added
Free shipping over $499

$48.00 $47.99 Save $0.01

Add to quote Compare
Compare

Out of stock
Lifesafety Power

SKU: B100-BOXED

Lifesafety Power B100-BOXED Voltage Power Supply 12VDC
- Selectable 12VDC fixed or 5–18VDC adjustable output reduces need for multiple supply units.
- 4-amp capacity supports two to four mid-power IP cameras or mixed access control loads.
- Boxed enclosure suits surface or DIN-rail mount in panels, closets, or remote distribution nodes.
$78.00 $77.99 Save $0.01

Add to Cart
The item has been added
Free shipping over $499

$78.00 $77.99 Save $0.01

Add to quote Compare
Compare

Out of stock
Lifesafety Power

SKU: BX75-C4E1

Lifesafety Power BX75-C4E1 PoE 75W power supply 12V and 24V 4 re
$634.00 $455.99 Save $178.01

Add to Cart
The item has been added
Free shipping over $499

$634.00 $455.99 Save $178.01

Add to quote Compare
Compare

Out of stock
Lifesafety Power

SKU: FPG100-BOXED

Lifesafety Power FPG100-BOXED Power Supply 100-240VAC internat
- Accepts 100–240VAC input — no step-down transformer needed for global deployments.
- Selectable 12VDC/8A or 24VDC/4A output covers most access control and lock loads.
- Single enclosed supply supports multi-region sites including North America, Europe, and Japan.
$290.00 $208.99 Save $81.01

Add to Cart
The item has been added
Free shipping over $499

$290.00 $208.99 Save $81.01

Add to quote Compare
Compare

Out of stock
Lifesafety Power

SKU: FPG200-BOXED

Lifesafety Power FPG200-BOXED Power Supply 100-240VAC internat
- Universal 100–240VAC input deploys across regions without swapping SKUs.
- 24VDC/8A output delivers 192W for camera clusters where PoE isn't available.
- International and Japan-compliant certifications cover multi-jurisdiction installs.
$381.00 $273.99 Save $107.01

Add to Cart
The item has been added
Free shipping over $499

$381.00 $273.99 Save $107.01

Add to quote Compare
Compare

Out of stock
Lifesafety Power

SKU: FPG50-BOXED

Lifesafety Power FPG50-BOXED Power Supply 100-240VAC internati
- Accepts 100–240VAC input, eliminating separate power units across global deployments.
- Selectable 12VDC or 24VDC output at 2A supports both legacy and modern IP camera installs.
- Japan-certified compliance simplifies regulatory approval for Asia-Pacific security projects.
$125.00 $124.99 Save $0.01

Add to Cart
The item has been added
Free shipping over $499

$125.00 $124.99 Save $0.01

Add to quote Compare

What to Look For When Buying

The decisions that matter most before you spec.

PoE Budget Planning & Oversubscription Risk

PoE switches are frequently rated for more cameras than their actual power budget allows. Read PoE Budget Planning for IP Camera Deployments to understand injector and supply sizing before deployment. Undersizing power delivery is a leading cause of intermittent camera failures and system collapse under load.

Power Failure Cascades & System Downtime

When electrical infrastructure fails, entire surveillance zones go dark. Why Surveillance Systems Fail During Incidents documents how inadequate power conditioning and lack of UPS cause loss of footage during security events. Plan battery backup for NVRs, edge recorders, and access control hubs.

Cable Distance & Voltage Drop

PoE and DC power delivery degrade over distance; runs beyond 100 meters often require midspan injectors or stepped-up supplies. Verify cable gauge and run length before selecting power distribution topology to avoid under-voltage conditions at the camera.

Multi-Location Standardization

Why Surveillance Standards Collapse After the Third Location shows how power supply mismatches across sites create maintenance nightmares. Choose a consistent voltage (12V, 24V, or PoE) and supplier throughout your deployment to reduce spare parts inventory and service complexity.

Redundant & Managed Power Distribution

Enterprise deployments benefit from redundant power paths, monitored PDUs, and ring topologies that isolate failures. Higher-end Honeywell and i-PRO systems often integrate power monitoring; plan accordingly for large campuses or critical facilities.

Environmental & Temperature Ratings

Outdoor and harsh-environment installations demand industrial-grade supplies rated for extended temperature, humidity, and vibration. Confirm operating range and mean-time-between-failure (MTBF) specifications before deployment in uncontrolled spaces.

Technology Stack

The specs and acronyms that actually affect electrical & power performance.

Power over Ethernet (PoE)

Delivers power and data via Cat5e/6 cable to end devices, eliminating separate power runs. Standard PoE (15.4W) and PoE+ (30W) cover most IP cameras; PoE++ (60–90W) supports high-power PTZ and multi-sensor units. Budget for realistic camera counts per switch to avoid brownout conditions.

Volt & Amperage (12V DC, 24V AC/DC)

Most analog and IP camera supplies operate at 12V DC or 24V AC. Verify polarity and current draw (mA or A) to select the right supply gauge; undersized supplies cause brownout and intermittent operation. Industrial systems often standardize on 24V for longer cable runs with less voltage drop.

Uninterruptible Power Supply (UPS)

Provides instant switchover to battery during mains failure, keeping NVRs, access control panels, and network infrastructure online. Capacity is measured in VA (volt-amperes) and run-time minutes; size for critical equipment and desired hold-up duration (typically 15–60 minutes).

Surge Protection & Transient Voltage Suppression (TVS)

Clamps lightning and inductive load spikes to safe levels, preventing component damage. Essential on outdoor camera circuits and near HVAC, door motors, and panel relays. Look for devices with replaceable cartridges or indication lights.

DIN-Rail Power Distribution

Modular power supplies and distribution blocks mounted on standard 35mm rail for easy expansion and maintenance. Common in control rooms, server racks, and equipment shelters; simplifies wiring and reduces clutter.

Cable Gauge & Voltage Drop

Thicker wire (lower AWG) reduces resistance and voltage loss over distance. For 12V runs >30m or 24V runs >50m, use oversized cable or inject power mid-span. Poor power distribution cascades into storage and network failures.

Typical Deployment Scenarios

Campus with Distributed Cameras (50–100 units)

Deploy a central PoE+ switch (24–48 ports) in the server room backed by a 2kVA UPS, with midspan Geovision or Honeywell injectors at remote buildings. Use surge-protected DIN-rail distribution and a 10–15 minute UPS hold-up to ensure graceful shutdown during mains failure.

Retrofit with Mixed 12V & PoE Cameras

Combine PoE cameras (via switch injector) with legacy 12V dome cameras (fed by industrial 12V DC supply + surge protector). Standardize termination and cable routing to simplify future moves/adds/changes. Size supply at 1.5× total expected load to handle inrush current.

Remote Unmanned Site (10–15 cameras)

Use a compact PoE injector or managed PoE+ switch, protected by a DIN-rail surge module and a 500VA UPS with 30–45 minute battery runtime. Include a backup 4G cellular gateway powered by the same UPS to retain remote access if mains fails.

Access Control + Video Integration (multi-reader facility)

Deploy redundant 24V AC supplies for door controllers and readers, with a separate 12V DC power budget for IP intercoms. Size a 3–5kVA UPS with extended runtime to hold access and surveillance during emergencies; add battery monitoring to alert before depletion.

Frequently Asked Questions

How many cameras can one PoE switch really support?

Rated port count does not equal real-world capacity. A 24-port PoE+ switch (370W budget) typically supports 10–14 high-powered cameras, not 24. Learn why PoE switches fail before rated count and plan injectors or additional switches accordingly.

What size UPS do I need for my surveillance system?

Calculate total watts of all equipment (NVR, switch, access control, intercoms) and multiply by 1.2 for safety. A 1000W device requires a 1.2kVA UPS minimum. For 30–60 minute hold-up, add battery packs. Consult the UPS datasheet runtime table for your exact load.

Can I run cameras over long cable distances without power loss?

Beyond 100 meters, voltage drop becomes significant. Use thicker cable (e.g., 10/2 instead of 18/2) or deploy a midspan PoE injector at the halfway point. Test actual voltage at the camera before and during operation to confirm it meets the minimum 11.5V for PoE devices.

Should I use surge protection outdoors?

Yes. Outdoor camera runs, especially on poles or towers, attract lightning transients that destroy unprotected equipment. Install a surge-suppression cartridge or dedicated SPD (Surge Protective Device) at the camera supply entry point.

What's the difference between 12V and 24V supplies?

24V systems have lower current for the same power, so they suffer less voltage drop over distance and are preferred for long cable runs and industrial deployments. 12V is common in legacy and compact camera designs. Choose based on your camera specs, not preference; mixing standards requires careful supply sizing and testing.

How often should I test my UPS battery backup?

Test battery runtime (load test) at least quarterly, or annually if the UPS is older. Monitor battery age; most UPS batteries degrade after 3–5 years and should be replaced proactively. For critical facilities, use a monitored UPS with email alerts for battery health.

Electrical & Power

Plan Your Deployment

Sub categories

Showing Results for Electrical & Power

Browse by Product Family

What to Look For When Buying

Technology Stack

Typical Deployment Scenarios

Top Brands for Electrical & Power

Frequently Asked Questions

Related Categories

Engineering Reading